This a set of four ST Racing Concepts 14mm Red Aluminum Wheel Hexes. Using high quality CNC machined aluminum, these
aluminum wheel hexes lock down on the axle so loosing pins is no
longer a problem, and allows the use of 14mm hex wheels on your Traxxas
electric Stampede for a higher and wider stance. Aluminum hexes are
also more durable and less likely to strip out and provides a better
fit to the wheel hex.